The discussion focuses on identifying the most efficient shape for an electromagnetic radiator, specifically one that emits infrared radiation at approximately 250 Kelvin. The original poster (OP) clarifies that they are referring to a radiator that exchanges heat solely through thermal radiation, similar to spacecraft radiators, but without weight and portability constraints. Ultimately, the OP concludes that a flat, thin plane is the most mathematically efficient shape for such a radiator, resolving the inquiry.
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No, I mean an engine radiator, emitting infrared at about 250 Kelvinanorlunda said:Do you mean antenna design? It depends on frequency.
Christofer Br said:What is the highest efficiency (electromagnetic) radiator shape?
That makes no sense to me.Christofer Br said:No, I mean an engine radiator, emitting infrared at about 250 Kelvin
I'm talking about a radiator that exchanges heat only by thermal radiation - no convection or heat conduction *out* from it. Somewhat similar to a spacecraft radiator, but without constraints on weight and portability. I should also add that a single flat surface is not what I am after, even though it's probably the most radiative per volume.berkeman said:That makes no sense to me.
Please help us to help you.
Do you mean like the radiator in the front of your car? Or radiators on spacecraft to shed excess heat? Please don't keep us guessing. Can you use Google Images to find an image of the kinds of "radiators" that you are asking about?